Lake Travis News (Austin, Tex.), Vol. 2, No. 4, Ed. 1 Tuesday, April 14, 1970, newspaper, April 14, 1970; (https://texashistory.unt.edu/ark:/67531/metapth1297720/m1/1/: accessed June 10, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .